?77t> 

.-Bsc 


DATA CONCERNING PLATINUM. ETC. 


Compliments of 


BAKER & CO., 

Gold, Silver-Platinuni Refiners 


Assayers and Sweep Smelters, 


405 , 410 , 412 & 414 


N. J. RAILROAD AYENUE, 




NEWARK, N. J. 















DATA CONCERNING PLATINUM, ETC. 


Qompliments of 



BAKER & CO., 

i\ > 


\\\ 


Gold, 5ilver«Platinuii| Refiners 


Assayers and Sweep Smelters, 




(A 




405 , 410 , 412 & 414 


N. J. RAILROAD AVENUE, 


NEWARK, N. 


r V\BRAFy~ 0/r 

V" 0 e 3 -'*< 

.J 


v nMl vi 


3 vu;y ^ 


v 





















g 


FIRST EDITION, 

~ ^ ^ ,Tr if 




rj \\\ 

\ _ _ 

* i 

Eight Hundred 


in the office of 




THE JAMES KEMPSTER PRINT, 11T-119 121 LIBERTY ST., 


N. Y. 










consideration of the many requests 


we have received from our customers for 

/ 1(iptv \ \w 

data concerning Platinum, we have prepared 


this Pamphlet and trust it will prove ser¬ 


viceable to the consumers of that metal. 




BAKER & CO 




408, 410, 412, 414 N. J. R. R Ave., 

i t* * % fra ' m - ^ 

NEWARK, N. J. 





DANIEL W. BAKER. 


CYRUS O. BAKER, Jr. 


BAKER & CO., 

Gold, Silver and Platinum Refiners, 

ASSAYERS and S|VIEIjTERS, 


408,410,412 and 414N. J. RAILROAD AVENUE, 


Cable Address, 
“BAKER, NEWARK.” 


NEWARK, N. J. 


Telephone Call, 
No. 8 NEWARK. 


PLHTINUM 

In Sheet and Wire, any Size or Degree of Hardness, for all 

Purposes. 


/ / w ' 'Jff tM . ') • . \ >, \ 

Platinum for Incandescent Lamp Manufacturers, 

/ Artificial Teeth Manufacturers, Jewelers, 

Manufacturing Chemists, Contact Points, 
Electric Gas Lighting, Dentists, 

Surgical, Electrical, 

Physical and Chemical Apparatus, 

Diamond Setters, Stylographic Pens, 

Platers, Alloys, Solutions, Electrodes, 
Eu y eriments, Laboratories, 

Chemical Supply Houses, 

Schools, Colleges, Students, 

Chemists, Druggists, Etc., Etc. 


\\ 


Granulated Gold and Silver, 

Fine Gold and Silver Anodes, 
Gold in Sheet and Wire, all Qualities and any Size. 

Silver, Pure, Sterling and Coin, in Sheet or Wire, all Sizes, 
for Surgical, Electrical, Experimental and 
Manufacturing Purposes. 


Pure Aluminum in Sheet and Wire for Electrical Purposes. 
Iridium, Palladium, Osmium, Ruthenium and Rhodium. 


Silver Solder, Mercury, Tin, Etc. 
Native and Scrap Platinum purchased. 


Anything containing Gold, Silver or Platinum, either refined or 
purchased. - 

Shippers will confer a favor by always marking name and address 
on outside of packages. 













5 


Approximate Weight and Capacity of Platinum 
Crucibles, Dishes, Etc. 

Manufactured by Baker & Co. 


Articles. 


Crucibles 


Gooch Crucibles. 


44 

u 


Dishes 


44 


44 

44 


Shells. 


Milk pans, round . 

•“ square. 
Boats. 


Muffles. 

Copper tests. 

“ “ according to forir . 


Triangles 


Spatulas. 

44 

Bottles. 

44 

Combustion tubes. 


Capacity 

Cubic 

Centimeters 

Weight in 
Grammes 

8 

8 

10 

10 

12 

11 

13 

12 

15 

14 

20 

18 

25 

24 

30 

Of: 

27 

qq 

oo 

40 

OO 

37 

45 

44 

50 

51 

55 

50 

00 

62 

10 

13 

152 

10 

15 

18 

520 

22 

25 

29 

30 

34 

25 

8 

40 

14 

50 

17 

05 

22 

75 

25 

90 

32 

100 

35 

125 

41 

140 

48 

150 

50 

175 

50 

200 

70 

250 

80 

300 

94 

350 

117 

400 

133 

100 

20 

15-20 

9-13 

3-5 

3-4 

.... 

45 


40-50 

10 cc 

8 

25 cc 

10 

20 cc 

13 

40 cc 

20 

. . . . 

5-10 

UK) 

70 

180 

100 

• • • • 

130 


Platinum dishes weigh approximately one-third as many grammes as they hold 
C. C. Platinum crucibles weigh approximately as many grammes as they hold C. C. 

Platinum concentrating stills, retorts, crucibles, dishes, pans, 
muffles,boats,bottles, filter cones,* combustion tubes, spatulas, triangles, 
spoons,* blowpipe tips,* coloring pots, dipping baskets, lightning rod 
tips,* wire, foil, tubing, gauze, sponge, black, solutions, etc. 

Platinum Fuse and /Spider Web Wire. 

Crucible tongs and tweezers tipped with platinum.* 

Platinum apparatus, any desired size or shape, made to order. 

All crucibles, dishes, etc., are hammered and guaranteed. 

*Filter cones, spoons, crucible tongs, tweezers, blowpipe tips and 
lightning rod tips are sold by the piece. 








































































6 


Tables giving the Weight Per Foot of Platinum Wire 
in Troy and French Weights. 

These tables are based upon pure platinum at its maximum 
density. The diameter and length are theoretically absolute, it will, 
therefore, be appreciated that practical tests will no doubt deviate 
slightly from figures herein given. For instance, a very slight deviation 
in diameter will make an appreciable difference in weight on long 
lengths. Allowance must also be made in calculating the weight of 
iridio platinum, as the specific gravity of iridium is about four per 
cent, greater than that of platinum. 

To ascertain the weight of corresponding size in pure silver, multi¬ 
ply by .48837, or approximately divide by 2. 


Size 
Dec. In. 

1 

07. 

Dwt. 

Grains 

Grammes 


Size 

Dec. In. 

Oz 

Dwt 

Grains 

Grammes 




1 

















.001 

0 

0 

0.05 

0.003 


.051 

0 

5 

13.43 

8.646 

.0015 

0 

0 

0.13 

0.008 


.052 

0 

5 

18.72 

8.989 

.002 

0 

0 

0.21 

0.014 


.053 

0 

6 

0.15 

9.341 

.0025 

0 

0 

0.36 

0.023 


.054 

0 

6 

5.59 

9.693 

.008 

0 

0 

0.51 

0.033 


.055 

11 

6 

11.24 

10.059 

.0035 

0 

0 

0.67 

0.043 


.056 

0 

6 

16.9\ 

10.426 

.004 

0 

0 

0.82 

0.053 


.057 

0 

6 

22.73 

10.804 

.0045 

0 

0 

1.07 

0.069 


.058 

0 

e* 

1 

4..58 

11.183 

.005 

0 

0 

1.32 

0.086 


.059 

0 

4 

10.63 

11.575 

.0055 

0 

0 

1.60 

0.104 


.060 

0 

7 

16.68 

\ 11.967 

.006 

0 

0 

1.84 

0.119 


.061 

0 

ri 

4 

22.94 

M2.373 

.0065 

0 

0 

2.20 

0.143 


.062 

0 

8 

5.20 

12.778 

.007 

0 

0 

2.56 

0.166 


.063 

0 

8 

11.67 

13.198 

.0075 

0 

0 

2.92 

0.189 


.064 

0 

8 

18.13 

13.616 

.008 

0 

0 

3.28 

0.213 


.065 

0 

9 

0.8 

14.048 

.0085 

0 

0 

3.74 

0.242 


.066 

0 

9 

7.47 

14.481 

.009 

0 

0 

4.20 

0.272 


.067 

0 

9 

14.35 

14.926 

.0095 

0 

0 

4.67 

0.303 


.068 

0 

9 

21.22 

15.372 

.010 

0 

0 

5.13 

0.332 


.069 

0 

10 

4.30 

15.830 

.011 

0 

0 

6.26 

0.406 


.070 

0 

10 

11.38 

16.289 

.012 

0 

0 

7.40 

0.480 


.071 

0 

10 

18.65 

16.760 . 

.013 

0 

0 

8.72 

0.565 


.072 

0 

11 

1.95 

17;233 

.014 

0 

0 

10.05 

0.651 


. 073 

0 

11 

9.44 

17.719 

.015 

0 

0 

11.60 

0.752 


.074 

0 

11 

16.93 

18.204 

.016 

0 

0 

13.13 

0.851 


.075 

0 

12 

0.63 

18.703 

.017 

0 

0 

14.90 

0.966 


.076 

0 

12 

8.32 

19.201 

.018 

0 

0 

16.62 

1.077 


.077 

0 

12 

16.22 

19.713 

.019 

0 

0 

18.60 

1.205 


.078 

0 

13 

0.12 

20.225 

.020 

0 

0 

20.52 

1.330 


.079 

0 

13 

8.23 

20.751 

.021 

0 

0 

22.68 

1.470 


.080 

0 

13 

16.33 

21.275 

.022 

I) 

1 

0.83 

1.609 


.081 

0 

14 

0.64 

21.814 

.023 

0 

1 

3.20 

1.763 


.082 

0 

14 

8.95 

22.352 

.024 


1 

5.60 

1.918 


.088 

0 

14 

17.47 

22.904 

.025 

0 

1 

8.12 

2.081 


.084 

(1 

15 

1.98 

23.456 

.026 

0 

1 

10.7 

2.249 


.085 

0 

15 

10.71 

24.022 

.027 

0 

1 

13.45 

2.427 


.086 

0 

'15 

19.43 

24.587 

.028 

0 

1 

16.22 

2.606 


.087 

0 

16 

16 

4.36 

13.28 

25.165 

25.743 

.029 

.030 

0 

1 

20.0 

2.851 


.088 

0 


0 

1 

22.1 7 

2.992 


.089 

0 

16 

22.41 

26.335 

.031 

0 

2 

1.35 

3.198 


.090 

0 

17 

7.54 

26.927 

.032 

0 

2 

4.53 

3.404 


.091 

0 

17 

16.88 

27.532 

.033 

0 

2 

7.92 

3.624 


.092 

0 

18 

2.22 

28.137 

.034 

0 

2 

11.30 

3.843 


.093 

0 

18 

11.76 

28.755 

.035 

0 

2 

15.0 

4.082 


.094 

0 

18 

21.3 

29.373 

.036 

0 

9 

18.5 

4.309 


.095 

0 

19 

7.05 

30.005 

.037 

0 

2 

22.64 

4.577 


.096 

0 

19 

16.8 

30.637 

.038 

0 

3 

2.8 

4.847 


.097 

1 

0 

2.8 

31.285 

.039 

0 

3 

6.8 

5.106 


.098 

1 

0 

12.7 

31.926 

.040 

0 

3 

10.8 

5.365 


.099 

1 

0 

22.87 

32.585 

.041 

0 

3 

14.65 

5.615 


.100 

1 

1 

9.02 

33.243 

.042 

0 

3 

18.5 

5.864 


.101 

1 

1 

19.38 

33.914 

.043 

0 

3 

23.0 

6.156 


.102 

1 

2 

5.74 

34.586 

.044 

0 

4 

3.32 

6.436 


.103 

1 

2 

16.31 

35.271 

.045 

0 

4 

8.0 

6.739 


.104 

1 

3 

2.88 

35.956 

.046 

0 

4 

13.0 

7.063 


.105 

1 

3 

13.66 

36.654 

.047 

0 

4 

17.37 

7.346 


.106 

1 

4 

0.43 

37.352 

.048 

0 

4 

22.2 

7.659 


.107 

1 

4 

11.41 

38.063 

.049 

0 

5 

3.23 

7.985 


.108 

1 

4 

22.38 

38.774 

.050 

0 

5 

8 26 

8.311 


.109 

1 

5 

9.57 

39.499 


Copyrighted by Baker & Co., Newark, N. J. 










































7 

Weights Per Foot of Platinum Wire in Troy and 
French Weights— Continued. 


Size 
Dec. In. 

Oz. 

Dwt. 

Grains 

Grammes 

Size 

Dec. In. 

Oz. 

Dwt 

Grains j 

Grammes 

.110 

1 

5 

20.76 

40.225 

.181 

3 

10 

0.77 

108.912 

.111 

1 

6 

8.15 

40.962 

.182 

3 

10 

19.34 

110.115 

.112 

1 

6 

19.53 

41.700 

.183 

3 

11 

14.12 

111.332 

.113 

1 

7 

7.13 

42.451 

.184 

3 

12 

8.9 

112.549 

.114 

1 

r* 

i 

18.72 

43.203 

.185 

3 

13 

3.88 

113.779 

.115 

1 

8 

6.52 

43.967 

.186 

3 

13 

22.86 

115.009 

.116 

1 

8 

18.32 

44.732 

.187 

3 

14 

18.05 

116.252 

.117 

1 

9 

6.33 

45.510 

.188 

3 

15 

13.24 

117.496 

.118 

1 

9 

18.33 

46.288 

.189 

3 

16 

8.63 

118.752 

.110 

1 

10 

6.54 

47.079 

.190 

3 

17 

4.02 

120.008 

.120 

1 

10 

18.75 

47 870 

191 

3 

17 

23.62 

121.279 



8 

18 

.121 

1 

11 

7.17 

48.675 

.192 

19.21 

122.548 

.122 

1 

11 

19.58 

49.479 

.193 

3 

19 

15.02 

123.831 

.123 

1 

12 

8.2 

50.297 

.194 

4 

0 , 

10.82 

125.115 

.124 

1 

12 

20.82 

51.115 

.195 

4 

• 1 

6.83 

126.411 

.125 

1 

13 

9.65 

51.946 

.186 

4 

o 

2.84 

127.708 

.126 

1 

13 

22.48 

52.777 

.197 

4 

2 

23.05 

129.017 

.127 

1 

14 

11.51 

53.621 

.198 

4 

3 

19.26 

130.327 

.128 

1 

15 

0.53 

54.465 

.199 

4 

4 

15.68 ' 

131.650 

.129 

1 

15 

13.77 

55.323 

.200 

4 

5 

12.1 

132.973 

.130 

1 

16 

3.01 

56.181 

.201 

4 

6 

8.73 

134.310 

.181 

1 

16 

16.45 

57.052 

.202 

4 

7 

5.35 

135.646 

.132 

1 

17 

5.89 

57.923 

.203 

4 

8 

2.18 

136.996 

.133 

1 

17 

19.54 

58.807 

.204 

4 

8 

23.0 

138.345 

.134 

1 

18 

9.18 

59.691 

.205 

4 

9 

20.0 

139.709 

.185 

1 

18 

23.04 

60.589 

.206 

4 

10 

17.07 

141.071 

.136 

1 

19 

12.89 

61.487 

.207 

4 

11 

14.31 

142,448 

.137 

2 

0 

2.95 

62.398 

.208 

4 

12 

11.55 

143.824 

138 

2 

0 

17.0 

63.308 

.209 

4 

13 

8.10 

145 m 56 

.130 

2 

1 

7.27 

64.233 

.210 

4 

14 

6.44 

146j603 

140 

2 

1 

21.53 

65.157 

.211 

4 

15 

4.09 

148:006 

141 

2 

2 

12.0 

66.094 

.212 

4 

16 

1.74 

149.409 

142 

2 

3 

2.46 

67.096 

.213 

4 

16 

23.10 

1507793 

143 

2 

3 

17.13 

67.982 

.214 

4 

17 

21.45 

152.241 

144 

2 

4 

7.8 

68.933 

.215 

4 

18 

19.51 

153.671 

145 

2 

4 

22.68 

69.897 

.216 

4 

19 

17.57 

155.100 

.146 

o 

5 

13.56 

70.861 

.217 

5 

0 

15.84 

156.543 

147 

9 

6 

4.64 

71.838 

.218 

5 

1 

14.1 

157.986 

148 

2 

6 

19.72 

72.815 

.219 

5 

2 

12.57 

.159.442 

.149 \\ 

2 

7 

11.02 

73.807 

.220 

5 

3 

11.04 

160.898 

150 

2' 

8 

2.31 

74.798 

.221 

5 

4 

9.72 

162.368 

151 

2 

8 

17.8 

75.801 

.222 

5 

5 

8.39 

163.837 

152 

2 

9 

9.29 

76.805 

.223 

5 

6 

7.27 

165.313 

.153 

\ 

10 

0.99 

77.822 

.224 

5 

7 

6.15 

166.802 

154 

2 

10 

16.69 

78.840 

.225 

5 

8 

5.24 

168.298 

155 

2 

11 

8.59 

*.870 

,&2 6 

5 

9 

4.33 

169.794 

156 

2 

12 

0.49 

80.900 

.227 

5 

10 

3.62 

171.303 

.157 

.158 

2 

2 

12 

16.6 

81.944 

.228 

5 

11 

2.91 

172.812 

13 

8.71 

ukk 

•»<) 

5 

5 

12 

13 

2.41 

1.9 

174.335 

175.857 



159 

2 

14 

1.03 

84.045 

. 230 

160 

2 

2 

14 

17.34 

85.103 

.231 

5 

14 

1.61 

177.394 

161 

15 

9.86 

86.173 

.232 

5 

15 

1.31 

178.929 

162 

2 

16 

2.38 

87.244 

.233 

5 

16 

1.22 

180.479 

163 

2 

16 

19.11 

88.327 

.234 

5 

17 

1.12 

182.028 

164 

2 

17 

11.83 

89.411 

.235 

5 

18 

1.24 

183.590 

165 

2 

18 

4.76 

90.508 

.236 

5 

19 

1.35 

185.153 

166 

2 

18 

21.69 

91.605 

.237 

6 

0 

1.67 

186.729 

167 

2 

19 

14.83 

92.716 

.238 

6 

1 

1.98 

188.304 

168 

3 

0 

7.96 

93.826 

.239 

6 

o 

2.51 

189.893 

169 

3 

3 

1 

1.3 

94.949 

.240 

6 

3 

3.03 

191.482 

.170 

171 

1 

18.64 

96.073 

.241 

6 

4 

3.78 

193.086 

3 

3 

2 

12.19 

97.210 

.242 

6 

5 

4.48 

194.687 

.172 

173 

3 

5.73 

98.347 

.243 

6 

6 

5.42 

196.303 

3 

3 

23.48 

99.497 

.244 

6 

i 

6.35 

197.918 

'.174 

.175 

.176 

177 

3 

3 

4 

17.23 

100.647 

.245 

6 

8 

7.49 

199.547 

5 

11.19 

101.811 

.246 

6 

9 

8.63 

201.176 

3 

6 

5.14 

102.974 

.247 

6 

10 

9.97 

202.818 

3 

6 

23.31 

104.152 

.248 

6 

11 

11.31 

204.460 

178 

3 

Tf 

17.47 

105.328 

.249 

6 

12 

12.84 

206.115 

.179 

3 

8 

11.84 

106.519 

.250 

6 

13 

14.36 

207.768 

.180 

3 

9 

6.20 

107.708 





1 


Copyrighted by Baker & C-o., Newark, N. J. 
































































8 


Table of Weights Per Square Inch of Platinum 

Sheet or Foil. 


Size 
Dec. In. 

Oz. 

Dwt. 

Grains 

Grammes 


Size 
Dec. In. 

Oz. 

Dwt. 

Grains 

Grammes 

.00045 

0 

0 

2.45 

0.162 


.048 

0 

10 

21.28 

16.930 

.0005 

0 

0 

2.72 

0.176 


.049 

0 

11 

2.73 

17.283 

.001 

0 

0 

5.44 

0.353 


.050 

0 

11 

8.17 

17.636 

.0015 

0 

0 

8.17 

0.529 


.051 

0 

11 

13.61 

17.988 

.002 

0 

0 

10.89 

0.705 


.052 

0 

11 

19.05 

18.341 

.0025 

0 

0 

13.61 

0.882 


.053 

0 

12 

0.50 

18.694 

.003 

0 

0 

16.33 

1.058 


.054 

0 

12 

5.94 

19.047 

.0035 

0 

0 

19.05 

1.234 


.055 

0 

12 

11.39 

19.400 

.004 

0 

0 

21.77 

1.411 


.056 

0 

12 

16.83 

19.752 

.0045 

0 

1 

0.50 

1.587 


.057 

0 

12 

22.27 

20.105 

.005 

0 

1 

3.22 

1.764 


.058 

0 

13 

3.72 

20.458 

.0055 

0 

/(y 

5.94 

1.940 


.059 

0 

13 

9.16 

20.610 

.006 

0 

1 

8.66 

2.116 


.060 

0 

13 

14.60 

21.163 

.007 

0 

1 

14.10 

2.469 


.061 

0 

13 

20.05 

21.516 

.008 

0 

1 

19.55 

2.821 


.062 

0 

14 

1.49 

21.868 

.009 

0 

2 

0.99 

3.174 


.063 

0 

14 

6.93 

22.221 

.010 

0 

2 

6.44 

3.527 


.064 

0 

14 

12.38 

22.574 

.011 

0 

2 

11.88 

3.880 


.065 

0 

14 

17.82 

22.927 

.012 

0 

2 

17.32 

4.232 


.066 

0 

14 

23.26 

23.279 

.013 

0 

2 

22.76 

4.585 


.067 

0 

15 

4.71 

23.632 

.014 

0 

3 

4.21 

4.938 


.068 

0 

15 

10.15 

23.985 

.015 

0 

3 

9.65 

5.290 


.069 

0 

15 

15.59 

24.337 

.016 

0 

3 

15.09 

5.643 


.070 

0 

15 

21.04 

24.690 

.017 

0 

3 

20.54 

5.996 


.071 

0 

16 

2.48 

25.043 

.018 

0 

4 

1.98 

6.349 


.072 

0 

16 

7.92 

25.396 

.019 

0 

4 

7.42 

6.701 


.073 

0 

16 

13.37 

25.749 

.020 

0 

4 

12.87 

7.054 


.074 

0 

16 

18.81 

26.101 

.021 

0 

4 

18.31 

7.407 


.075 

0 

17 

0.25 

26.454 

.022 

0 

4 

23.75 

7.759 


.076 

0 

17 

5.70 

26.807 

.023 

0 

5 

5.20 

8.113 


.077 

0 

17 

11.14 

27.159 

.024 

0 

5 

10.64 

8.465 


.078 

0 

17 

16.58 

27.512 

.025 

0 

5 

16.08 

8.817 


.079 

0 

17 

22.03 | 

27.665 

.026 

0 

5 

21.53 

9.171 


.080 

0 

18 

3.47 

28.218 

.027 

0 

6 

2.97 

9.523 


.081 

0 

18 

8.91 

28.570 

.028 

0 

6 

8.41 

9.876 


.082 

0 

18 

14.36 

28.923 

.029 

0 

6 

13.86 

10.229 


.083 

0 

18 

19.80 

29.276 

.030 

0 

6 

19.30 

10.581 


.084 

0 

19 

1.24 

29.628 

.031 

0 

> y 

t 

0.75 

10.934 


.085 

0 

19 

6.69 

29.981 

© 

CO 

0 

ty 

i 

6.19 

11.287 


.086 

0 

19 

12.13 

30.334 

.033 

0 

>y 

( 

11.63 

11.639 


.087 

0 

19 

17.57 

30.684 

.034 

0 

7 

17.07 

11.992 


.088 

0 

19 

23.02 

31.039 

.035 

0 

r* 

i 

22.52 

12.345 


.089 

1 

0 

4.46 

31.392 

.036 

0 

8 

3.96 

12.698 


.090 

1 

0 

9.90 

31.745 

.037 

0 

8 

9.40 

13.050 


.091 

1 

0 

15.35 

32.098 

.038 

0 

8 

14.85 

13.403 


.092 

1 

0 

20.80 

32.451 

.039 

0 

8 

20.29 

13.756 


.093 

1 

1 

2.24 

32.803 

.040 

0 

9 

1.73 

14.108 


.094 

1 

1 

7.68 

33.156 

.041 

0 

9 

7.18 

14.461 


.095 

1 

1 

13.12 

33.508 

.042 

0 

9 

12.62 

14.814 


.096 

1 

1 

18.56 

33.861 

.043 

0 

9 

18.06 

15.166 


.097 

1 

2 

0.01 

34.214 

.044 

0 

9 

23.51 

15.519 


.098 

1 

2 

5.45 

34.566 

.045 

0 

10 

4.95 

15.872 


.099 

1 

2 

10.89 

34.919 

.046 

0 

10 

10.40 

16.225 


.100 

1 

2 

16.34 

35.272 

.047 

0 

10 

15.84 

16.578 








Copyrighted by Baker & Co., Newark, N. J. 













































9 


Fractional Parts of an Inch Expressed in 

Thousandths. 

The following tables will be found very convenient for the trans¬ 
position of fractional parts of an inch, or decimal parts of a millimeter 
to decimals of an inch : 


8ths. 


16ths 


32nds. 


64ths. 


% 

X 

96 

! 

% 



.125 

1 

xn 

— 

.0625 


.250 

f\ 

— 

.1875 


.375 

& 


.3125 


.500 

7 

TS 

— 

.4375 


.625 


zz 

. 5625 

= 

.750 

3 1 

T6 

— 

.6875 

= 

.875 

1 3 
T75 


.8125 



1 5 
TS 

zz 

.9375 


1 

32 

3 

S3? 

5 

32 
7 

33 
9 

53 
1 i 
33 

1 3 
33 

33 

33 

H 

If 

2 5 

33 

53 

P 

35 


.03125 
.09375 
.15625 
.21875 
.28125 
.34375 
.40625 
.46875 
.53125 
.59375 
.65625 
.71875 
.78125 
.84375 
.90625 
.96875 


i 

Bit 

3 

Bi 

5 

BJ 

Bit 

& 

a 

1 3 
B¥ 
1 6 
B? 

si 

19 

B4 

2 1 
65 
23 
B5 

M 

27 

55 

§1 
3 1 
5T 


it 

3T 

39 

64 

ft 

3T 

45 


H = 

t£ = 
M = 
M = 

5 5 — 
55 — 
5 7 — 
55 — 
59 — 
55 — 

§i = 
M = 


.015625 
.046875 
.07'8125 
.109375 
.140625 
.171875 
.203125 
.234375 
.265625 
.296875 
.328125 
.359375 
.390625 
.421875 
.453125 
.484375 
.515625 
.546875 
.478125 
.609375 
.640625 
.671875 
.703125 
.734375 
.765625 
.796875 
.828125 
.859375 
.890625 
.921875 
.953125 
.984375 


Decimal Parts of a Millimeter Expressed in 
Decimal Parts of an Inch. 


1 —’ .03937 
.99 = .0389765 
.98 = .0385826 
.97 = .0381889 
.96 = .0377952 
.95 = .0374015 
.94 = .0370078 
.93 = .0366141 
.92 = .0362204 
.91 = .0358267 
.90 = .0354330 
.89 = .0350393 
.88 = .0346456 
.87 = .0342519 
.86 = .0338582 
.85 — .0334645 
.84 — .0330708 
.83 = .0326771 
.82 — .0322834 
.81 = .0318897 


.80 = .0314960 
.79 = .0311023 
.78 = .0307086 
.77 = .0303149 
.76 — .0299212 
.75 = .0295275 
.74 = .0291338 
.73 = .0287401 
.72 = .0283464 
.71 = .0279527 
.70 = .0275590 
.69 = .0271653 
.68 = .0267716 
.67 = .0263779 
.66 = .0259842 
.65 = .0255905 
.64 = .0251968 
.63 =- .0248031 
.62 = .0244094 
.61 = .0240157 


.60 = .0236220 
.59 = .0232283 
.58 = .0228346 
.57 ==• .0224409 
.56 = .0220472 
.55 .0216535 

.54 = .0212598 
.53 S3 .0208661 
.52 = .0204724 
.51 = .0200787 
.50 = .019685 
.49 .0192913 

.48 = .0188976 
.47 = .0185039 
.46 = .0181102 
.45 = .0177165 
.44 = .0173228 
.43 = .0169291 
.42 = .0165354 
.41 = .0161417 


.40 = .0157480 
.39 = .0153543 
.38 = .0149606 
.87 = .0145669 
.36 = .0141732 
.35 = .0137795 
.34 = .0133858 
.33 = .0129921 
.32 = .0125984 
.31 = .0122047 
.30 — .0118110 
.29 = .0114173 
.28 = .0110236 
.27 = .0106299 
.26 — .0102362 
.25 = .0098425 
.24 = .0094488 
.23 = .0090551 
.22 = .0086614 
.21 — .0082677 


.20 =- .0078740 
.19 = .0074803 
.18 = .0070866 
.17 = .0066929 
.16 = .0062992 
.15 = .0059055 
.14 =~ .0055118 
.13 = .0051181 
.12 = .0047244 
.11 = .0043307 
.10 = .0039370 
.09 = .0035433 
.08 — .0031496 
.07 = .0027559 
.06 = .0023622 
.05 = .0019685 
.04 = .0015748 
.03 = .0011811 
.02 = .0007874 
.01 = .0003937 


» 


Comparison of Inches, Feet, Millimeters, 
Centimeters and Meters. 



Inches. 

Feet. 

Millimeters. 

Centimeters. 

Meters. 

One Inch. 

1. 

.0833 

25.399 

2.5399 

.025499 

One Foot. 

12. 

1. 

304.788 

30.4788 

.304788 

One Millimeter. 

.03937 

.00328 

1. 

.1 

.001 

One Centimeter.... 

.393685 

.0328 

10. 

1. 

.01 

One Meter. 


3.2809 

1000. 

100. 

1. 













































10 


Comparison of Wire Gauges. 


Numbers of Wire Gauges Expressed in Decimal Parts of an Inch. 


Gauge 

Nos. 

*B. & S. & 
A. W. 
Gauge 

t B.W.G. 
Eng. 
Stand¬ 
ard 
Stubs 

Twist 

Drill 

Wash¬ 

burn 

and 

Moen 

New 

British 

Stand¬ 

ard 

Trenton 
Iron Co. 

Old 

English 

London 

Gauge 

Nos. 

7.0 




.490 

.500 




7 0 

G.O 




.460 

.464 




*6.0 

5.0 




.430 

.432 

.450 



5 0 

4.0 

.460 

.454 


.393 

.400 

.400 



4 0 

3.0 

.40964 

.425 


.362 

.372 

.360 



3.0 

2.0 

.3648 

.380 


.331 

.348 

.330 



2 0 

1.0 

.32486 

.340 


.307 

.324 

.305 



1 0 

1 

.2893 ' 

.300 

.228 

.283 

.300 

.285 



1 

2 

.25763 

.284 

.221 

.263 

.276 

.265 



2 

3 

.22942 

.259 

.213 

.244 

.252 

.245 



3 

4 

.20431 

.238 

.209 

.225 

.232 

.225 



1 

5 

.18194 

.220 

.2055 

.207 

.212 

.205 



5 

6 

.16202 

.203 

.204 

.192 

.192 

.190 

’ \\\" 


6 

7 

.14428 

.180 

.201 

.177 

.176 

.175 



•y 

8 

.12840 

.165 

.199 

.162 

.160 

.160 



8 

9 

.11443 

.148 

.196 

.148 

.144 

.145 


.148 

9 

10 

.10189 

.134 

.1935 

.135 

.128 

.130 


J34 

10 

11 

.09074 

.120 

.191 

.120 

.116 

.1175 


.120 

11 

12 

.08081 

.109 

.189 

.105 

.104 

.105 


.109 

12 

13 

.07196 

.095 

.185 

.092 

.092 

.0925 


.095 

13 

14 

.06408 

.083 

.182 

.080 

.080 

.080 

.083 

.083 

14 

15 

.05707 

.072 

.180 

.072 

.072 

.070 

.072 

.072 

15 

16 

.05082 

.065 

.177 

.063 

.064 

.061 

.065 

.065 

16 

17 

.04525 

.058 

.173 

.054 

.056 

.0525 

.058 

.058 

17 

18 

.0403 

.049 

.1695 

.047 

.048 

.045 

.049 

.049 

18 

19 

.03589 

.042 

.166 

.041 

.040 

.040 

.040 

.040 

19 

20 

.03196 

.035 

.161 

.035 

.036 

.035 

.035 

.035 

20 

21 

.02846 

.032 

.159 

.032 

.032 

.031 

.0315 

.0315 

21 

22 

.02535 

.028 

.157 

.028 

.028 

.028 

.0295 

.0295 

22 

23 

.02257 

.025 

.154 

.025 

.024 

.025 

.027 

.027 

23 

24 

.0201 

.022 

.152 

.023 

.022 

.0225 

.025 

.025 

I 24 

25 

.0179 

.020 

.1495 

.02 

.020 

.020 

.023 

.023 

25 

26 

.01594 

.018 

.147 

.018 

.018 

.018 

.0205 

.0205 

26 

27 

.01419 

.016 

.144 

.017 

.0164 

.017 

.01875 > 

.01875 

27 

28 

.01264 

.014 

.1405 

.016 

.0148 

.016 

.0165 

.0165 

28 

29 

.01126 

.013 

.136 

.015 

.0136 

.015 

.0155 

.0155 

29 

30 

.01002 

.012 

.1285 

.014 

.0124 

.014 

.01375 

.01875 

30 

31 

.00893 

.010 

.120 

.0135 

.0116 

.013 

.01225 

.01225 

31 

32 

.00795 

.009 

.116 

.013 

.0108 

.012 

.01125 

.01125 

32 

33 

.00708 

.008 

.113 

.011 

.010 

.011 

.01025 

.01025 

33 

34 

.0063 

.007 

.111 

.01 

.0092 

.010 

.0095 

.0095 

34 

35 

.00561 

.005 

.110 

.0095 

.0084 

.0095 

.009 

.009 

35 

36 

.005 

.004 

.1065 

.009 

.0076 

.009 

.0075 

.0075 

36 

37 

.00445 


.104 

.0085 

.0068 

.0085 

0065 


37 

38 

.00396 


.1015 

.008 

.00(5 

008 

00575 


38 

39 

.00353 

.. 

.0995 

.0075 

.0052 

.0075 

.005 


39 

40 

.00314 


.098 

.007 

.0048 

.007 

.0045 


40 

41 



.096 


.0044 


41 

42 



.0935 


.004 




42 

43 



.089 


.0036 




43 

44 



.086 


.0032 




44 

45 



.082 


.0028 




45 

46 



.081 


.0024 





47 



.0785 


.002 




47 

48 



.076 


.0016 




4K 

49 



.073 


.0012 




4Q 

50 



.070 


.001 




50 

51 



.067 






51 

52 



.0635 






59! 

53 



.0595 






5 ft 

54 



.055 






54 

55 



.052 






55 

56 



.0465 






5fi 

57 



.043 






57 

58 



.042 






5tt 

59 



.041 






59 

60 



.040 

















* Brown & Sharpe, or American Wire Gauge, t Birmingham Wire Gauge. 




































































































































CO 

H 

X 

O 

LU 


Z 


CO 


> 

o 

DC 

h 


tn 

0) 

3 

a 


ft 3 


O 

02 


JZ3 

0) 


eg 

Sd 


c$ 

0> 

0> 

ft 


CQ 

0) 


g 

So 


02 

0) 

a 

a 

oj 

o 


o 

a; 

ft 


a 

a> 

o 


>5 

o 

ft 


co 

0) 


g 

aj 

St 


CO 

<K 

' c* 

a a 

•ft a 

e, cS 

C 

&UD 


in' ^ 

O 5 

<1 ft 


D 

O 

a 

a 

O 


. aS 

8 § 

h £ 


a 

a 

a 

O 


o b- 

u x 

ft ft 


>> .a 

P a 
f- 1 u 
H 0 


& 

qo 

05 

L'» 


O 

O 

o 


■f 
AO 
{> 
t— 1 
iO 
aO 
AO 


io 

05 

I 

o 


CO 

o 


CO 

i- 

05 

7—1 

3 

co 

CO 


co 

o 

AO 

o 

QO 

§ 


05 

rr< 

3 

O* 

o 

o 

1 


O 7—1 


3 


o 

AO 

io 


AO 

05 

CO 

o 


CO 


GO 

i- 

05 

t-h 

3 

CO 

i> 

CO 


8 

Tt< 

AO 

05 


05 

3 

o 

05 


3 8 

JO 


l- 

05 

00 

05 

*> 

Tt» 


Tt* 

ao 

7—1 

8 

AO 


O 

05 

CO 

o 


CO 


00 

i> 

Ttl 

05 

7—1 

3 

CO 

?> 

CO 


CO 


o* 


05 

3 

cd 

® 

05 

AO 

CO 

JO 


i> 

05 

3 

AO 

05 

GO 

i- 


05 

7—1 

co 


AO 

o 


AO 

7—1 

CD 

AO 

• 

o 


Tft 

• 

7—1 

CO 


00 

i> 

05 


CO 

i> 

co 


CO 

o 

3 

05 

3 


05 

JO 

§j 

Tt< 


CO 

02 

a 

a 

ce 

u 

bo 


i> 

05 

00 

05 

3 


S! IO 
AO 05 

J> 'rr 

7—1 CO 
AO O 
AO 

• 7—1 

AO t— i 
7—1 CO 


£ 


05 

7—1 

Tt< 


co 


o 

3 

05 


05 

T*« 

3 

o* 

05 


00 

05 

i> 


3 


AO 


AO 

AO 


AO 

05 

CO 


CO 


00 

05 


£* 

CO 

{- 

CO 


8 

3 

05 

Tt< 




i- 3 

05 L- 
00 7—1 

05 • 

AO 


AO 

05 


oo 

Tf 

05 


3 


I 

CO CO 


CO 

1 

05 


o* 


05 

3 

CO 

a 

05 

c§ 

aO 

05 


o* 

05 

AO 

CO 

AO 

Tj< 




S3 

O0 


7—1 

i- 

AO 

00 


8 8 


aO 

§5 



i> 

AO 

GO 

0> 

C5 

O 


i- 

AO 

00 

3 

o 


35 


i- 




i- 

AO 


co 


3 

CO 

$5 

AO 

CO 


' P T 

05 

CO 

|| 

8 


i- CO 

AO O* 
CO AO 
CO 

o 


8 


Tf 

05 

CO 

8 


CO co 
CO co 
l- CD 


CO 

c? 

CO 


c2 «> 

3 Si 

05 AO 

aO 7—1 

8 ** 


AO 

r- 

AO 

0* 

AO 

o? 


o* 

05 

f- 

05 


CD 

i- 

05 


CD 

i>- 


Oi 

CD 


Oi 


1 


O* 

05 

N 

CD 

o? 

o 


X 


AO 

o 





CD 

CD 

CD 


00 


CD 

CD 


05 

O* 



CD 


05 

3 

Oi 


3 




io • 

8 i- 8 

i>- CC' O 

IO ^ i> 


C5 

CO 

OJ 


05 05 

3 3 


a : 

'3 £ 
t* r 
O ft 

o - 


a 

a 

a 

a 

O 


3 n 

O o ft 

^ G 

I - 

- t> - 


a 

a 

a 

be 


a 

o> 

O 


o 

<D 

ft 


<a 

I 

a 

C5 


D 

a 

8 

be 

a 

s 

a 

ft 


CO 


OJ 


-t< 

05 

CO 

i- 

o? 

o 


3 

I 


AO 

?i g 


O? 

Oi 

- 

CD 


AO 

o* 

i 

05 

J- 

CD 

oi 


Si 

o 8 § 


O* O^ 
CO 

CO 


g* 

CO 


AO AO 
^ Tt< 


o 

CO 


3 


AO 


CO 

3 


05 05 

3 3 

§S 

00 

3 3 


05 

3 

1 

3 


c3 

-4ft 

o 

02 

ft 


ft 


aj 

ft 


Copyrighted by Baker & Co., Newark, 






















































































